Zafar, M.; A. Rana, M.; Zahid, M.; Ahmad, B. Mathematical Analysis of the Coating Process over a Porous Web Lubricated with Upper-Convected Maxwell Fluid. Coatings2019, 9, 458.
Zafar, M.; A. Rana, M.; Zahid, M.; Ahmad, B. Mathematical Analysis of the Coating Process over a Porous Web Lubricated with Upper-Convected Maxwell Fluid. Coatings 2019, 9, 458.
Zafar, M.; A. Rana, M.; Zahid, M.; Ahmad, B. Mathematical Analysis of the Coating Process over a Porous Web Lubricated with Upper-Convected Maxwell Fluid. Coatings2019, 9, 458.
Zafar, M.; A. Rana, M.; Zahid, M.; Ahmad, B. Mathematical Analysis of the Coating Process over a Porous Web Lubricated with Upper-Convected Maxwell Fluid. Coatings 2019, 9, 458.
Abstract
Present study offers mathematical calculations of the roll-coating procedure lubricated with upper Convected Maxwell Fluid. An incompressible isothermal viscoelastic fluid is considered with roll and the porous web having uniform velocities. By employing Lubrication Approximation Theory, the desired equations of motion for the fluid concerned over porous web are modelled and analyzed. The suction rate on the web and injection rate at the roll surface are anticipated proportionate. Results for velocity profile and pressure gradient are obtained analytically. Fluid parameters of industrial significance i.e. detachment point, pressure, sheet /roll separating force, power contribution and coating thickness are also calculated numerically. Substantial and monotonic increase is witnessed in these quantities with the increase of flow parameters.
Keywords
Convected Maxwell Flow; Roll Coating Analysis; Lubrication Approximation Theory; Numerical Procedures; Porous Web
Subject
Computer Science and Mathematics, Applied Mathematics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
